JP7210227B2 - Interior and exterior materials for vehicles - Google Patents

Interior and exterior materials for vehicles Download PDF

Info

Publication number
JP7210227B2
JP7210227B2 JP2018207917A JP2018207917A JP7210227B2 JP 7210227 B2 JP7210227 B2 JP 7210227B2 JP 2018207917 A JP2018207917 A JP 2018207917A JP 2018207917 A JP2018207917 A JP 2018207917A JP 7210227 B2 JP7210227 B2 JP 7210227B2
Authority
JP
Japan
Prior art keywords
film
light control
vehicle
control film
exterior material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2018207917A
Other languages
Japanese (ja)
Other versions
JP2020076791A (en
Inventor
正博 杁江
寛治 小林
賢治 岡本
望 鷲尾
康児 三島
▲祥▼平 原田
一志 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Boshoku Corp
Riken Technos Corp
TDK Corp
Original Assignee
Toyota Boshoku Corp
Riken Technos Corp
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Boshoku Corp, Riken Technos Corp, TDK Corp filed Critical Toyota Boshoku Corp
Priority to JP2018207917A priority Critical patent/JP7210227B2/en
Priority to US16/667,129 priority patent/US10877345B2/en
Priority to CN201911049441.XA priority patent/CN111142283A/en
Publication of JP2020076791A publication Critical patent/JP2020076791A/en
Application granted granted Critical
Publication of JP7210227B2 publication Critical patent/JP7210227B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133723—Polyimide, polyamide-imide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/24—Homopolymers or copolymers of amides or imides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
    • E06B3/6722—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light with adjustable passage of light
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/54—Arrangements for reducing warping-twist
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/02—Materials and properties organic material
    • G02F2202/022—Materials and properties organic material polymeric
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/01—Function characteristic transmissive

Description

本発明は、車両の内装や外装に用いる車両用調光フィルム、および、その車両用調光フィルムを用いた車両用内外装材に関する。 TECHNICAL FIELD The present invention relates to a vehicle light control film used for the interior and exterior of a vehicle, and a vehicle interior and exterior material using the vehicle light control film.

一般的に、窓等に貼り付けて用いられる調光フィルムは、対向配置された一対のフィルム基材と、それら一対のフィルム基材の各々の対向面に形成された導電層と、各フィルム基材に形成された導電層の間に介在する液晶層と、からなる。そのような調光フィルムは、フィルム基材上に導電層を形成する際、フィルム基材を製造用基板に保持させた状態で行われる。下記特許文献１に記載の調光フィルムは、フィルム基材上に導電層を形成する際に、フィルム基材の反りやシワの発生を抑えるために、製造用基板上に保持層、導電層、配向層の順で積層し、その積層したものを製造用基板から剥離して、フィルム基材に貼り付けた構成となっている。 In general, a light control film that is used by being attached to a window or the like consists of a pair of film substrates arranged to face each other, a conductive layer formed on each of the opposing surfaces of the pair of film substrates, and each film substrate. and a liquid crystal layer interposed between conductive layers formed on the material. Such a light control film is formed in a state in which the film substrate is held by the production substrate when the conductive layer is formed on the film substrate. In the light control film described in Patent Document 1 below, when a conductive layer is formed on a film substrate, a holding layer, a conductive layer, It has a structure in which the orientation layers are laminated in order, and the laminated product is peeled off from the production substrate and adhered to the film substrate.

特開２０１７－６２３６１号公報JP 2017-62361 A

従来から、上記のような調光フィルムのフィルム基材には、ポリエチレンテレフタレート（ＰＥＴ）やポリカーボネイト（ＰＣ）が用いられるとともに、導電層には、透明電極である酸化インジウムスズ（ＩＴＯ）が用いられている。このような構成の調光フィルムは、上述したように、窓のような平面や多少湾曲したような面に対して貼り付けて用いられる。しかしながら、車両の内装材や外装材の表面に貼り付けて用いる場合、車両の内外装材は比較的複雑な形状とされる部分が存在し、例えば、上記のような構成の調光フィルムをその複雑な形状に合わせて引き伸ばそうとすると、ＩＴＯにより形成された導電層にクラック等が発生し、導電性が著しく悪化して調光機能が失われてしまうという問題がある。また、ＩＴＯ（詳しく言えば、インジウム）は、レアメタルであり、コストが高いという問題もある。さらに、ＰＥＴやＰＣは、特に、一般的に多く用いられているＰＥＴが、耐熱温度が低く、比較的高温になることもある車両に用いることは難しい。 Conventionally, polyethylene terephthalate (PET) or polycarbonate (PC) has been used for the film substrate of the light control film as described above, and indium tin oxide (ITO), which is a transparent electrode, has been used for the conductive layer. ing. As described above, the light control film having such a structure is used by being attached to a flat surface such as a window or a slightly curved surface. However, when used by being attached to the surface of the interior or exterior material of a vehicle, there are portions of the interior and exterior materials of the vehicle that have a relatively complicated shape. When it is attempted to be stretched to conform to a complicated shape, cracks or the like occur in the conductive layer formed of ITO, resulting in a significant deterioration in conductivity and a loss of the dimming function. In addition, ITO (specifically, indium) is a rare metal and has a problem of high cost. Furthermore, it is difficult to use PET and PC, especially PET, which is commonly used, for vehicles that have a low heat resistance and can reach relatively high temperatures.

本発明は、そのような実情に鑑みてなされたものであり、コストを抑え、複雑な形状に成形可能な車両の内外装に用いるための車両用調光フィルムを提供するとともに、その車両用調光フィルムを用いた車両用内外装材を提供することを課題とする。 The present invention has been made in view of such circumstances, and provides a vehicle light control film for use in the interior and exterior of a vehicle that can be molded into a complicated shape at a low cost, and also provides the vehicle light control film. An object of the present invention is to provide a vehicle interior and exterior material using an optical film.

上記課題を解決するために本発明の車両用調光フィルムは、
対向配置された一対のフィルム基材と、前記一対のフィルム基材の各々の対向面に形成された導電層と、前記一対のフィルム基材の各々に形成された前記導電層の間に介在する液晶層と、を備え、前記導電層に電圧が印加されることで、少なくとも自身のヘイズ値が相対的に高い状態と低い状態との間で切り替えられる構成とされ、
前記フィルム基材が、アクリル系イミドからなるとともに、前記導電層が、銀薄膜または銅メッシュからなることを特徴とする。 In order to solve the above problems, the vehicle light control film of the present invention comprises:
interposed between a pair of film substrates arranged to face each other, a conductive layer formed on each of the opposing surfaces of the pair of film substrates, and the conductive layer formed on each of the pair of film substrates a liquid crystal layer, wherein at least its own haze value is switched between a relatively high state and a relatively low state by applying a voltage to the conductive layer;
The film substrate is made of acrylic imide, and the conductive layer is made of a thin silver film or a copper mesh.

この構成の車両用調光フィルムは、例えば、車両用内装材に貼り付けて映像を投影可能なフィルムとして用いたり、バスや電車等の車両用外装材に貼り付けて映像を投射することでラッピングを施すのに用いたりすることができる。また、例えば、完全自動運転等が成立した将来の車両において、透明樹脂によって形成された車体と一体的に形成し、ヘイズ値（光散乱率）の低い状態、つまり、光を散乱させずに透過させる透明状態とすることで窓として、一方、ヘイズ値が高い状態、つまり、光を散乱させた非透明状態とすることでスクリーンとして、利用することができる。 For example, the vehicle light control film having this configuration can be used as a film that can be used as a film that can project images by being attached to an interior material for a vehicle, or can be used as a film that can be projected onto an exterior material for a vehicle such as a bus or a train, and can be used for wrapping by projecting an image. can be used to apply In addition, for example, in future vehicles where fully automated driving etc. is established, it is formed integrally with the vehicle body formed of transparent resin, and has a low haze value (light scattering rate), that is, it transmits light without scattering it. It can be used as a window when it is in a transparent state, and it can be used as a screen when it is in a non-transparent state where the haze value is high, ie, light is scattered.

この構成の車両用調光フィルムが備えるフィルム基材に用いられるアクリル系イミドは、ＰＥＴに比較して耐熱温度が高いため、車両用調光フィルムの構成要素として好適である。一方で、この構成の調光フィルムを加熱・軟化させて成形する際の温度は、ＰＥＴに対して低いため、アクリル系イミドからなるフィルム基材は、ＰＥＴからなる調光フィルムに比較して、成形を行いやすく、車両用調光フィルムの構成要素として好適である。また、この構成の車両用調光フィルムが備える導電層に用いられる銀薄膜および銅メッシュは、ＩＴＯに比較して、透明性は低いものの、曲げに対する耐性が高い。つまり、この構成の車両用調光フィルムは、調光フィルムとして製造した後に、用いる箇所が複雑な形状であっても、その形状に合わせて成形することができる。また、ＩＴＯを構成するインジウムは高価であるため、銀や銅を用いれば、コストを低下させることもできる。したがって、この構成の車両用調光フィルムは、車両の内外装材として好適なものとなっている。 The acrylic imide used for the film substrate of the vehicle light control film having this structure has a higher heat resistance than PET, and is suitable as a component of the vehicle light control film. On the other hand, the temperature at which the light control film having this structure is heated and softened and molded is lower than that of PET. It is easy to mold and is suitable as a component of a vehicle light control film. In addition, the silver thin film and copper mesh used in the conductive layer of the light control film for vehicles having this configuration have lower transparency than ITO, but high resistance to bending. In other words, the vehicle light control film having this structure can be molded according to the shape even if the part to be used has a complicated shape after being manufactured as a light control film. Moreover, since indium constituting ITO is expensive, the use of silver or copper can also reduce the cost. Therefore, the vehicle light control film having this configuration is suitable as an interior and exterior material for vehicles.

さらに言えば、アクリル系イミドからなるフィルム基材は、紫外線を防止することができるとともに、傷もつきにくく、車両用調光フィルムの構成要素として好適である。また、銀薄膜からなる導電層は、赤外線より長波長側の光（物を加熱する作用のある光）を約５０パーセント程度カットすることができるため、この構成の車両用調光フィルムによれば、車内温度の上昇を抑えることができ、車両の内外装材として好適である。 Furthermore, the film substrate made of acrylic imide can prevent ultraviolet rays and is resistant to scratches, and is suitable as a constituent element of a light control film for vehicles. In addition, since the conductive layer made of silver thin film can cut about 50% of light on the longer wavelength side than infrared rays (light that has the effect of heating things), according to the vehicle light control film of this configuration , it is possible to suppress the increase in the temperature inside the vehicle, and it is suitable as an interior and exterior material for the vehicle.

また、上記課題を解決するために本発明の車両用内外装材は、
車両の内装あるいは外装の一部の形状をなすパネル部材を主体として構成され、上記構成の車両用調光フィルムが、前記パネル部材の表面に沿って貼り付けられてなることを特徴とする。 Further, in order to solve the above problems, the vehicle interior and exterior material of the present invention includes:
It is characterized in that it is mainly composed of a panel member forming a part of the interior or exterior of a vehicle, and the vehicle light control film having the above configuration is attached along the surface of the panel member.

この構成の車両用内外装材は、上記の構成の車両用調光フィルムが内装材あるいは外装材として一体的に成形されたものである。従来の調光フィルムは、パネル部材に貼り付けたとしても、十分に曲げることができないため、無駄なスペース等が生じさせることになるが、この構成の車両用内外装材によれば、無駄なスペースを生じさせることもなく、さらに言えば、車両用調光フィルムがパネル部材と一体的に成形されてその車両用調光フィルムの存在さえ気付かせない車両用内外装材となる。また、例えば、この構成の車両用内外装材は、パネル基材を透明な基材によって形成し、車両用調光フィルムを透明状態とすることで、窓として用いることができる。また、パネル基材を加飾用のものとし、本車両用調光フィルムを透明状態とすることで、その基材の加飾を乗員に視認させ、非透明状態とすることで、スクリーンとして用いることができる。以上のように、この構成の車両用内外装材は、種々の方法で利用することができる。 The vehicle interior/exterior material having this structure is obtained by integrally forming the vehicle light control film having the above structure as an interior material or an exterior material. Even if a conventional light control film is attached to a panel member, it cannot be bent sufficiently, resulting in wasted space. The vehicle light control film is formed integrally with the panel member, so that the vehicle interior and exterior material does not create a space, and even the existence of the vehicle light control film is invisible. Further, for example, the vehicle interior and exterior material having this configuration can be used as a window by forming the panel base material from a transparent base material and making the vehicle light control film transparent. In addition, the panel base material is used for decoration, and the vehicle light control film is made transparent to allow passengers to visually recognize the decoration of the base material. be able to. As described above, the vehicle interior and exterior material having this configuration can be used in various ways.

本発明によれば、コストを抑え、複雑な形状に成形可能な車両の内外装に用いるための車両用調光フィルムを提供するとともに、その車両用調光フィルムを用いた車両用内外装材を提供することができる。 According to the present invention, there is provided a vehicle light control film for use in vehicle interiors and exteriors that can be molded into a complicated shape at a reduced cost, and a vehicle interior and exterior material using the vehicle light control film. can provide.

本発明の実施例の車両調光フィルムが採用された車両の斜視図（一部を取り除いた図）である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view (partially removed) of a vehicle in which the vehicle light control film of the embodiment of the present invention is employed; 図１に示した車両の上方側の断面図である。FIG. 2 is a cross-sectional view of the upper side of the vehicle shown in FIG. 1; 図１に示した車両のof the vehicle shown in FIG. 本発明の実施例の車両調光フィルムが備えるフィルム基材に用いられる材料の比較表である。4 is a comparison table of materials used for film substrates of vehicle light control films of Examples of the present invention. 本発明の実施例の車両調光フィルムが備える導電層に用いられる材料の比較表である。4 is a comparison table of materials used for a conductive layer included in the vehicle light control film of Examples of the present invention.

以下、本発明を実施するための形態として、本発明の実施例を、図を参照しつつ詳しく説明する。なお、本発明は、下記の実施例に限定されるものではなく、当業者の知識に基づいて種々の変更、改良を施した種々の態様で実施することができる。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention. It should be noted that the present invention is not limited to the following examples, and can be implemented in various modes with various modifications and improvements based on the knowledge of those skilled in the art.

図１に、本発明の実施例の車両用調光フィルム１０（以下、単に「調光フィルム１０」と呼ぶ場合がある）を採用した車両１１を示す。本車両１１は、完全自動運転が成立したと想定した場合のものであり、運転席は存在せず、比較的自由に配置を変更可能なシートを備えている。ただし、図１においては、シートの図示は省略するとともに、車両１１の内部を図示するために、一部を断面としている。 FIG. 1 shows a vehicle 11 employing a vehicle light control film 10 (hereinafter sometimes simply referred to as "light control film 10") of an embodiment of the present invention. This vehicle 11 is assumed to be fully automated, does not have a driver's seat, and has seats that can be rearranged relatively freely. However, in FIG. 1 , the illustration of the seat is omitted, and a part of the vehicle 11 is shown as a cross section in order to show the inside of the vehicle 11 .

車両１１は、開放的な空間を実現可能なものであり、車体１２の上方側（前方，後方，側方および天井）は、複数のウインドウ１３で覆われたような構成となっている。それらウインドウ１３は、いずれも同様の構成であり、図２に示すように、ほぼ透明な樹脂材料（例えば、ポリカーボネイトやアクリル等）からなる板状のパネル部材１４と、そのパネル部材１４の車室内側に貼り付けられた本実施例の調光フィルム１０と、を含んで構成される。本実施例の調光フィルム１０は、後に詳しく説明するが、ヘイズ値が相対的に高い状態（ヘイズ値８０パーセント以上：以下、「非透明状態」と呼ぶこととする。）と、低い状態（ヘイズ値数パーセント：以下、「透明状態」と呼ぶこととする）と、の間で切り替え可能なものである。つまり、ウインドウ１３は、調光フィルム１０を透明状態とすることで、窓として機能し、非透明状態とすることで、車室空間を外部から視認できない状態、換言すれば、車室空間から外部を視認できない状態とすることが可能とされている。また、車両１１は、図１に示すように、非透明状態とした左側面のウインドウ１３Ｌに、映像を投影することが可能な構成とされている。なお、車両１１は、複数のウインドウ１３の各々を、独立して、透明状態・非透明状態を切り替え可能な構成となっている。 The vehicle 11 can realize an open space, and the upper side (front, rear, side and ceiling) of the vehicle body 12 is covered with a plurality of windows 13 . All of these windows 13 have the same structure, and as shown in FIG. and the light control film 10 of the present embodiment attached to the inside. The light control film 10 of the present embodiment has a relatively high haze value (80% or more haze value: hereinafter referred to as “non-transparent state”) and a low haze state (which will be described in detail later). Haze value number percentage: hereinafter referred to as "transparent state") and can be switched between. That is, the window 13 functions as a window by setting the light control film 10 in a transparent state, and by setting it in a non-transparent state, the vehicle interior space cannot be visually recognized from the outside. can be made invisible. In addition, as shown in FIG. 1, the vehicle 11 is configured to be able to project an image on the left side window 13L in a non-transparent state. The vehicle 11 is configured such that each of the plurality of windows 13 can be independently switched between a transparent state and a non-transparent state.

本車両用調光フィルム１０は、図２に示すように、対向配置されたほぼ透明なフィルム状の一対のフィルム基材２０と、それら一対のフィルム基材２０の各々の対向面に形成された導電層２１と、各フィルム基材２０に形成された導電層２１の間に介在する液晶層２２と、を含んで構成される。そして、後に詳しく説明するが、本車両用調光フィルム１０は、フィルム基材２０がアクリル系イミドからなり、かつ、導電層２１が銀薄膜からなることを特徴する。なお、銀薄膜である導電層２１は、フィルム基材２０の表面にスパッタリングによって成膜されたものである。そして、導電層２１が成膜された一対のフィルム基材２０が、液晶層２２の厚さ分の間隔を維持するとともにその液晶層２２を封止するシール材（図示省略）によって貼り合わされて、本調光フィルム１０が形成されている。なお、液晶層２２は、電界印加に伴って光学特性が変化する物質である液晶分子を含むものであり、本調光フィルム１０は、導電層２１に電圧を印加して液晶層２２に電界を生じさせることで、液晶分子の配向方向を変更し、透明状態と非透明状態とを切り替えるように構成されている。 As shown in FIG. 2, the vehicular light control film 10 comprises a pair of substantially transparent film-like film substrates 20 arranged opposite to each other, and the opposing surfaces of the pair of film substrates 20. It is composed of a conductive layer 21 and a liquid crystal layer 22 interposed between the conductive layers 21 formed on each film substrate 20 . As will be described in detail later, the vehicle light control film 10 is characterized in that the film substrate 20 is made of an acrylic imide, and the conductive layer 21 is made of a silver thin film. The conductive layer 21, which is a silver thin film, is formed on the surface of the film substrate 20 by sputtering. Then, the pair of film substrates 20 on which the conductive layer 21 is formed are bonded together by a sealing material (not shown) that maintains a gap corresponding to the thickness of the liquid crystal layer 22 and seals the liquid crystal layer 22. A main light control film 10 is formed. The liquid crystal layer 22 contains liquid crystal molecules, which are substances whose optical characteristics change with the application of an electric field. It is configured to change the orientation direction of the liquid crystal molecules and switch between a transparent state and a non-transparent state by generating the liquid crystal molecules.

また、本車両用調光フィルム１０は、車体１２の側面における下方側の部分にも採用される。車体１２のその側面下方側の部分は、図１に示すように、側面パネル３０が嵌め込まれて形成されている。その側面パネル３０は、例えばアームレスト等として利用可能な車室内側に向かって突出する突出部３０ａを有するものとなっている。また、側面パネル３０は、図３に示すように、車室外側面をなすアウタパネル３１と、車室内側面をなすインナパネル３２と、を含んで構成される。アウタパネル３１は、ほぼ透明な平板状の樹脂材料製（例えば、ポリカーボネイトやアクリル等）の部材のみからなる。それに対して、インナパネル３２は、車室内側に向かって突出して突出部３０ａを有する形状をなしたほぼ透明な樹脂材料（例えば、ポリカーボネイトやアクリル等）からなるパネル部材３３と、そのパネル部材３３の車室内側面に貼り付けられた本実施例の調光フィルム１０と、が一体的に成形されたものである。そして、側面パネル３０は、それらアウタパネル３１とインナパネル３２とが組み付けられたものとなっている。つまり、調光フィルム１０の透明状態・非透明状態の切り替えによって、この側面パネル３０自身の透明状態・非透明状態を切り替えることが可能とされている。 In addition, the vehicle light control film 10 is also employed in the lower portion of the side surface of the vehicle body 12 . As shown in FIG. 1, the lower side portion of the vehicle body 12 is formed with a side panel 30 fitted therein. The side panel 30 has a protruding portion 30a that protrudes toward the interior of the vehicle and can be used as, for example, an armrest. As shown in FIG. 3, the side panel 30 includes an outer panel 31 forming the outer side surface of the passenger compartment and an inner panel 32 forming the inner side surface of the passenger compartment. The outer panel 31 is composed only of a substantially transparent plate-shaped member made of a resin material (for example, polycarbonate, acrylic, or the like). On the other hand, the inner panel 32 includes a panel member 33 made of a substantially transparent resin material (for example, polycarbonate, acrylic, etc.) that protrudes toward the interior of the vehicle and has a protrusion 30a. and the light control film 10 of the present embodiment attached to the inner side surface of the vehicle are integrally molded. The side panel 30 is formed by assembling the outer panel 31 and the inner panel 32 together. That is, by switching the light control film 10 between the transparent state and the non-transparent state, the side panel 30 itself can be switched between the transparent state and the non-transparent state.

ここで、本実施例の車両用調光フィルム１０の特徴について詳しく説明する。前述したように、本調光フィルム１０は、フィルム基材２０がアクリル系イミドからなり、かつ、導電層２１が銀薄膜からなることを特徴としている。なお、調光フィルムは、フィルム基材がポリエチレンテレフタレート（ＰＥＴ）からなり、導電層が酸化インジウムスズ（ＩＴＯ：Indium Tin Oxide）からなるものが一般的である。ここで、本発明の車両用調光フィルム１０の材料と、一般的な調光フィルムの材料とを比較することとする。まず、図４に示すように、フィルム基材に用いられるアクリル系イミドは、光透過率９１パーセントで、ＰＥＴと同程度となっており、また、ＰＥＴと同様に、車両の内外装に必要な紫外線を防止すること（ＵＶ９９パーセントカット）や、傷付きにくいものとなっている。だだし、ＰＥＴは、耐熱温度が１００～１２０℃であるのに対し、アクリル系イミドは、１５０℃程度であり、温度上昇する場合がある車両の内外装に好適である、また、後に詳しく説明するが、成形時に材料を軟化させるための温度が、ＰＥＴが２６０℃程度であるのに対し、アクリル系イミドは、１６０℃程度と低く、成形性に優れたものとなっている。 Here, features of the vehicle light control film 10 of the present embodiment will be described in detail. As described above, the present light control film 10 is characterized in that the film substrate 20 is made of acrylic imide, and the conductive layer 21 is made of a silver thin film. In general, the light control film has a film substrate made of polyethylene terephthalate (PET) and a conductive layer made of indium tin oxide (ITO). Here, the material of the vehicle light control film 10 of the present invention and the material of a general light control film will be compared. First, as shown in FIG. 4, the acrylic imide used for the film substrate has a light transmittance of 91%, which is about the same as PET. It prevents ultraviolet rays (UV99% cut) and is scratch resistant. However, PET has a heat resistance temperature of 100 to 120°C, whereas acrylic imide has a heat resistance of about 150°C, which is suitable for the interior and exterior of vehicles where the temperature may rise. However, while the temperature for softening the material during molding is about 260° C. for PET, the temperature for acrylic imide is as low as about 160° C., resulting in excellent moldability.

以下に、上記アクリル系イミドについて、より詳細に説明することとする。上記アクリル系イミドは、アクリル構造とイミド構造の両方の構造を有する熱可塑性樹脂である。上記アクリル系イミドは、アクリル構造を有することから、アクリル樹脂の高透明性、高表面硬度、高剛性という特徴を有する。また上記アクリル系イミドは、イミド構造を有することから、ポリイミドの耐熱性や寸法安定性に優れるという特徴を有する。更に、上記アクリル系イミドは、通常、ポリイミドの淡黄色から赤褐色に着色するという欠点が改良されている。 The above acrylic imide will be described in more detail below. The acrylic imide is a thermoplastic resin having both an acrylic structure and an imide structure. Since the acrylic imide has an acrylic structure, it has characteristics of acrylic resin such as high transparency, high surface hardness, and high rigidity. Moreover, since the acrylic imide has an imide structure, it is characterized by being excellent in heat resistance and dimensional stability of polyimide. Furthermore, the above acrylic imide has improved the drawback of polyimide, which is usually colored from pale yellow to reddish brown.

上記アクリル系イミドとしては、例えば、Ｎ－置換マレイミド・（メタ）アクリル酸メチル共重合体などの（メタ）アクリル酸エステルとイミド構造を有する重合性モノマーとの共重合体；ポリ（メタ）アクリル酸メチル、スチレン・（メタ）アクリル酸メチル共重合体などのアクリル系樹脂をイミド化剤（例えば、メチルアミン、シクロヘキシルアミン、及びアンモニアなどをあげることができる。）と反応させることによりイミド構造が導入された重合体；などをあげることができる。上記アクリル系イミドとしては、これらの１種又は２種以上の混合物を用いることができる。本明細書において、（メタ）アクリル酸とはアクリル酸又はメタクリル酸の意味である。 Examples of the acrylic imide include copolymers of (meth)acrylic acid esters such as N-substituted maleimide/methyl (meth)acrylate copolymers and polymerizable monomers having an imide structure; poly(meth)acryl An imide structure is formed by reacting an acrylic resin such as methyl acid, styrene/methyl (meth)acrylate copolymer, or the like with an imidizing agent (eg, methylamine, cyclohexylamine, and ammonia). introduced polymers; and the like. One or a mixture of two or more of these can be used as the acrylic imide. As used herein, (meth)acrylic acid means acrylic acid or methacrylic acid.

上記アクリル系イミドのガラス転移温度は、耐熱性の観点から、通常１２５℃以上、好ましくは１３０℃以上、より好ましくは１３５℃以上、更に好ましくは１４０℃以上、より更に好ましくは１４５℃以上、最も好ましくは１５０℃以上であってよい。一方、上記アクリル系イミドのガラス転移温度は、成形性の観点から、通常１７０℃以下、好ましくは１６５℃以下、より好ましくは１６０℃以下、更に好ましくは１５５℃以下であってよい。ここでガラス転移温度は、ＪＩＳ Ｋ７１２１－１９８７に従い、２５０℃で３分間保持し、１０℃／分で２０℃まで冷却し、２０℃で３分間保持し、１０℃／分で２５０℃まで昇温するプログラムで測定される最後の昇温過程の曲線から算出した中間点ガラス転移温度である。示差走査熱量計としては、例えば、株式会社パーキンエルマージャパンのＤｉａｍｏｎｄ ＤＳＣ型示差走査熱量計を使用することができる。 From the viewpoint of heat resistance, the glass transition temperature of the acrylic imide is usually 125°C or higher, preferably 130°C or higher, more preferably 135°C or higher, still more preferably 140°C or higher, still more preferably 145°C or higher, and most preferably 145°C or higher. Preferably, it may be 150° C. or higher. On the other hand, the glass transition temperature of the acrylic imide may be usually 170° C. or lower, preferably 165° C. or lower, more preferably 160° C. or lower, still more preferably 155° C. or lower, from the viewpoint of moldability. Here, according to JIS K7121-1987, the glass transition temperature is maintained at 250°C for 3 minutes, cooled to 20°C at 10°C/min, maintained at 20°C for 3 minutes, and heated to 250°C at 10°C/min. It is the midpoint glass transition temperature calculated from the curve of the last heating process measured by the program that As the differential scanning calorimeter, for example, a Diamond DSC differential scanning calorimeter manufactured by PerkinElmer Japan Co., Ltd. can be used.

上記アクリル系イミドの黄色度指数は、通常５以下、好ましくは３以下、より好ましくは２以下、更に好ましくは１以下であってよい。黄色度指数は低いほど好ましい。黄色度指数が５以下のアクリル系イミドを用いることにより、車両用内外装材として好適な色調のフィルムを得ることができる。ここで黄色度指数はＪＩＳ Ｋ７１０５：１９８１に従い測定した値である。色度計としては、例えば、株式会社島津製作所の色度計「ＳｏｌｉｄＳｐｅｃ－３７００（商品名）」を使用することができる。 The acrylic imide may generally have a yellowness index of 5 or less, preferably 3 or less, more preferably 2 or less, and even more preferably 1 or less. The lower the yellowness index, the better. By using an acrylic imide having a yellowness index of 5 or less, it is possible to obtain a film with a suitable color tone as an interior and exterior material for vehicles. Here, the yellowness index is a value measured according to JIS K7105:1981. As the chromaticity meter, for example, a chromaticity meter “SolidSpec-3700 (trade name)” manufactured by Shimadzu Corporation can be used.

上記アクリル系イミドのメルトマスフローレート（ＩＳＯ１１３３に従い、２６０℃、９８．０７Ｎの条件で測定。）は、フィルム製膜時の押出負荷や溶融フィルムの安定性の観点から、好ましくは０．１～２０ｇ／１０分、より好ましくは０．５～１０ｇ／１０分であってよい。 The melt mass flow rate of the acrylic imide (measured under conditions of 260° C. and 98.07 N according to ISO 1133) is preferably 0.1 to 20 g from the viewpoint of extrusion load during film formation and melt film stability. /10 min, more preferably 0.5 to 10 g/10 min.

上記アクリル系イミドには、本発明の目的に反しない限度において、所望により、アクリル系イミド以外の熱可塑性樹脂；顔料、無機フィラー、有機フィラー、樹脂フィラー；滑剤、酸化防止剤、耐候性安定剤、熱安定剤、離型剤、帯電防止剤、及び界面活性剤等の添加剤；などを更に含ませることができる。これらの任意成分の配合量は、アクリル系イミドを１００質量部としたとき、通常１０質量部以下、あるいは０．０１～１０質量部程度である。 The above acrylic imides may optionally include thermoplastic resins other than acrylic imides; pigments, inorganic fillers, organic fillers, resin fillers; lubricants, antioxidants, weather stabilizers, and , heat stabilizers, release agents, antistatic agents, and additives such as surfactants; and the like. The blending amount of these optional components is usually 10 parts by mass or less, or about 0.01 to 10 parts by mass, based on 100 parts by mass of the acrylic imide.

上記アクリル系イミドを用いて、アクリル系イミドからなるフィルム基材２０を製膜する方法は、特に制限されず、公知の方法を使用することができる。上記アクリル系イミドを用いて、アクリル系イミドからなるフィルム基材２０を製膜する好ましい方法としては、例えば、特許５８６５９５３号公報に開示された方法をあげることができる。 A method for forming the film substrate 20 made of acrylic imide using the acrylic imide is not particularly limited, and a known method can be used. A preferred method for forming the film base material 20 made of acrylic imide using the acrylic imide is the method disclosed in Japanese Patent No. 5865953, for example.

他の実施形態において、フィルム基材２０は、上記アクリル系イミドと他の熱可塑性樹脂との積層フィルムであってよい。該他の熱可塑性樹脂の好ましいものとしては、例えば、芳香族ポリカーボネートをあげることができる。上記アクリル系イミドは表面硬度には優れているが、耐衝撃性が不十分になり易いのに対し、上記芳香族ポリカーボネートは耐衝撃性には優れているが、表面硬度が不十分になり易い。そのため上記アクリル系イミドと上記芳香族ポリカーボネートとを積層することにより、両者の弱点を補い合い、表面硬度、及び耐衝撃性の両方に優れたフィルム基材２０を得ることができる。 In another embodiment, the film substrate 20 may be a laminated film of the above acrylic imide and another thermoplastic resin. Preferred other thermoplastic resins include, for example, aromatic polycarbonates. The acrylic imide has excellent surface hardness but tends to have insufficient impact resistance, whereas the aromatic polycarbonate has excellent impact resistance but tends to have insufficient surface hardness. . Therefore, by laminating the above acrylic imide and the above aromatic polycarbonate, the weak points of both can be compensated for, and the film substrate 20 excellent in both surface hardness and impact resistance can be obtained.

上記アクリル系イミドと上記芳香族ポリカーボネートとの積層フィルムとしては、例えば、上記アクリル系イミドからなる層と上記芳香族ポリカーボネートからなる層とが直接積層された多層フィルム；上記アクリル系イミドからなる第１の層、上記芳香族ポリカーボネートからなる層、及び上記アクリル系イミドからなる第２の層がこの順に直接積層された多層フィルム；などをあげることができる。 Examples of the laminated film of the acrylic imide and the aromatic polycarbonate include, for example, a multilayer film in which a layer of the acrylic imide and a layer of the aromatic polycarbonate are directly laminated; layer, the layer of aromatic polycarbonate, and the second layer of acrylic imide directly laminated in this order;

上記芳香族ポリカーボネートとしては、例えば、ビスフェノールＡ、ジメチルビスフェノールＡ、１，１－ビス（４－ヒドロキシフェニル）－３，３，５－トリメチルシクロヘキサンなどの芳香族ジヒドロキシ化合物とホスゲンとの界面重合法によって得られる重合体；ビスフェノールＡ、ジメチルビスフェノールＡ、１，１－ビス（４－ヒドロキシフェニル）－３，３，５－トリメチルシクロヘキサンなどの芳香族ジヒドロキシ化合物とジフェニルカーボネートなどの炭酸ジエステルとのエステル交換反応により得られる重合体；などをあげることができる。上記芳香族ポリカーボネートとしてはこれらの１種又は２種以上の混合物を用いることができる。 The above-mentioned aromatic polycarbonate can be obtained, for example, by interfacial polymerization of an aromatic dihydroxy compound such as bisphenol A, dimethylbisphenol A, 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane and phosgene. Obtained polymer; transesterification reaction between aromatic dihydroxy compounds such as bisphenol A, dimethylbisphenol A, 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane and carbonic acid diesters such as diphenyl carbonate A polymer obtained by; One or a mixture of two or more thereof can be used as the aromatic polycarbonate.

上記芳香族ポリカーボネートには、本発明の目的に反しない限度において、所望により、芳香族ポリカーボネート以外の熱可塑性樹脂；顔料、無機フィラー、有機フィラー、樹脂フィラー；滑剤、酸化防止剤、耐候性安定剤、熱安定剤、離型剤、帯電防止剤、及び界面活性剤等の添加剤；などを更に含ませることができる。これらの任意成分の配合量は、芳香族ポリカーボネートを１００質量部としたとき、通常１０質量部以下、あるいは０．０１～１０質量部程度である。 The above-mentioned aromatic polycarbonate may optionally contain a thermoplastic resin other than the aromatic polycarbonate; a pigment, an inorganic filler, an organic filler, a resin filler; , heat stabilizers, release agents, antistatic agents, and additives such as surfactants; and the like. The blending amount of these optional components is usually 10 parts by mass or less, or about 0.01 to 10 parts by mass, per 100 parts by mass of the aromatic polycarbonate.

上記アクリル系イミドと他の熱可塑性樹脂との積層フィルムを製膜する方法は、特に制限されず、公知の方法を使用することができる。上記アクリル系イミドと他の熱可塑性樹脂との積層フィルムが、上記アクリル系イミドからなる第１の層、上記芳香族ポリカーボネートからなる層、及び上記アクリル系イミドからなる第２の層がこの順に直接積層された多層フィルムである場合の好ましい方法としては、例えば、特許５８９３６８６号公報に開示された方法をあげることができる。 The method for forming the laminate film of the acrylic imide and other thermoplastic resin is not particularly limited, and known methods can be used. The laminated film of the acrylic imide and another thermoplastic resin is directly composed of the first layer made of the acrylic imide, the layer made of the aromatic polycarbonate, and the second layer made of the acrylic imide in this order. A preferred method for a laminated multilayer film is, for example, the method disclosed in Japanese Patent No. 5893686.

フィルム基材２０の全光線透過率は、通常８５％以上、好ましくは８８％以上、より好ましくは９０％以上であってよい。全光線透過率は高いほど好ましい。全光線透過率が８５％以上のフィルム基材２０を用いることにより、車両用内外装材として好適な透明性のフィルムを得ることができる。ここで全光線透過率はＪＩＳ Ｋ ７３６１－１：１９９７に従い測定した値である。濁度計としては、例えば、日本電色工業株式会社の濁度計「ＮＤＨ２０００（商品名）」を使用することができる。 The total light transmittance of the film substrate 20 may be generally 85% or higher, preferably 88% or higher, more preferably 90% or higher. The higher the total light transmittance, the better. By using the film substrate 20 having a total light transmittance of 85% or more, it is possible to obtain a transparent film suitable for vehicle interior and exterior materials. Here, the total light transmittance is a value measured according to JIS K 7361-1:1997. As the turbidity meter, for example, a turbidity meter “NDH2000 (trade name)” manufactured by Nippon Denshoku Industries Co., Ltd. can be used.

フィルム基材２０の黄色度指数は、通常５以下、好ましくは３以下、より好ましくは２以下、更に好ましくは１以下であってよい。黄色度指数は低いほど好ましい。黄色度指数が５以下のフィルム基材２０を用いることにより、車両用内外装材として好適な色調のフィルムを得ることができる。ここで黄色度指数はＪＩＳ Ｋ７１０５：１９８１に従い測定した値である。色度計としては、例えば、株式会社島津製作所の色度計「ＳｏｌｉｄＳｐｅｃ－３７００（商品名）」を使用することができる。 The yellowness index of the film substrate 20 may be generally 5 or less, preferably 3 or less, more preferably 2 or less, and even more preferably 1 or less. The lower the yellowness index, the better. By using the film substrate 20 having a yellowness index of 5 or less, it is possible to obtain a film with a suitable color tone for vehicle interior and exterior materials. Here, the yellowness index is a value measured according to JIS K7105:1981. As the chromaticity meter, for example, a chromaticity meter “SolidSpec-3700 (trade name)” manufactured by Shimadzu Corporation can be used.

フィルム基材２０のレタデーションは、通常７５ｎｍ以下、好ましくは５０ｎｍ、より好ましくは４０ｎｍ以下、更に好ましくは３０ｎｍ以下、更により好ましくは２０ｎｍ以下、最も好ましくは１５ｎｍ以下であってよい。レタデーションは低いほど好ましい。レタデーションが７５ｎｍ以下のフィルム基材２０を用いることにより、車両用内外装材、特に窓用として好適なクリア感のフィルムを得ることができる。ここでレタデーションは平行ニコル回転法により測定した値である。測定装置としては、例えば、王子計測機器株式会社の平行ニコル回転法による位相差測定装置「ＫＯＢＲＡ－ＷＲ（商品名）」を使用することができる。 The retardation of the film substrate 20 may be generally 75 nm or less, preferably 50 nm or less, more preferably 40 nm or less, even more preferably 30 nm or less, even more preferably 20 nm or less, and most preferably 15 nm or less. The lower the retardation, the better. By using the film substrate 20 with a retardation of 75 nm or less, it is possible to obtain a film with a clear feeling suitable for vehicle interior and exterior materials, particularly for windows. Here, the retardation is a value measured by the parallel Nicols rotation method. As a measuring device, for example, a phase difference measuring device "KOBRA-WR (trade name)" by the parallel Nicol rotation method manufactured by Oji Scientific Instruments Co., Ltd. can be used.

次に、図５を参照しつつ、導電層に用いられる材料を比較する。詳しく言えば、一般的な調光フィルムに用いられるＩＴＯと、本実施例の導電層２１に用いられている銀薄膜と、本発明の調光フィルムに係る導電層に採用可能な銅メッシュと、を比較する。ＩＴＯが用いられた調光フィルムは、複雑な形状に合わせて引き伸ばそうとすると、ＩＴＯにより形成された導電層にクラック等が発生し、導電性が著しく悪化して調光機能が失われてしまうという問題がある。ＩＴＯは、平板状での導電性が高く、透明性は高いものの、曲げに対する耐性がなく、ＩＴＯを用いた調光フィルムは、前述した側面パネル３０の突出部３０ａに沿った形状に成形することが不可能である。それに対して、銀薄膜や銅メッシュは、曲げに対する耐性が高く、側面パネル３０の突出部３０ａに沿った形状に成形しても、調光機能を失うようなことはないのである。また、ＩＴＯを構成するインジウムは高価であるため、銀や銅によって導電層を形成することで、ＩＴＯを用いた場合に比較して、コストを低下させることができる。さらに言えば、銀薄膜からなる導電層２１は、赤外線より長波長側の光、換言すれば、物を加熱する作用のある光を、約５０パーセント程度カットすることができるため、本実施例の調光フィルム１０を用いた車両１１は、車内温度の上昇を抑えることが可能である。 Next, with reference to FIG. 5, materials used for the conductive layer are compared. Specifically, ITO used in a general light control film, the silver thin film used in the conductive layer 21 of the present embodiment, a copper mesh that can be used for the conductive layer of the light control film of the present invention, compare. When a light control film using ITO is stretched to fit a complicated shape, cracks or the like occur in the conductive layer formed by ITO, and the conductivity is significantly deteriorated, resulting in loss of the light control function. There is a problem. Although ITO has high conductivity and transparency in a flat plate shape, it does not have resistance to bending. is impossible. On the other hand, silver thin films and copper meshes have high resistance to bending, and even if they are shaped along the protruding portions 30a of the side panel 30, they do not lose their dimming function. In addition, since indium that constitutes ITO is expensive, formation of the conductive layer from silver or copper can reduce costs compared to the case of using ITO. Furthermore, the conductive layer 21 made of a silver thin film can cut off about 50% of light having a longer wavelength than infrared rays, in other words, light that has the effect of heating an object. A vehicle 11 using the light control film 10 can suppress an increase in vehicle interior temperature.

以上のように、本実施例の車両用調光フィルム１０は、フィルム基材２０がアクリル系イミドあるいはアクリル系イミドと他の熱可塑性樹脂とを積層したものからなり、かつ、導電層２１が銀薄膜あるいは銅メッシュからなることで、車両の内外装材として好適なものとなっているのである。 As described above, in the vehicle light control film 10 of this embodiment, the film substrate 20 is made of acrylic imide or a laminate of acrylic imide and another thermoplastic resin, and the conductive layer 21 is made of silver. Since it is made of a thin film or a copper mesh, it is suitable as an interior and exterior material for vehicles.

前述した側面パネル３０のインナパネル３２は、例えば、いわゆる真空成形を用いて、インナパネル３２を構成するパネル部材３３と本実施例の車両用調光フィルム１０とを、一体的に成形したものとなっている。簡単に説明すれば、パネル部材３３の材料となる平板状の樹脂部材に、本実施例の調光フィルム１０を貼り付ける。そして、それら樹脂部材および調光フィルム１０を保持して加熱し、型に合わせて真空吸引することで、上記の突出部３０ａを形成する。ただし、上述したように、アクリル系イミドからなるフィルム基材２０は、成形時の温度が１６０℃程度である。それに対して、液晶層２２は、耐熱温度が１００℃であるため、液晶層２２の温度が上昇しすぎないようにする必要がある。本実施例の調光フィルム１０は、液晶層２２が、銀薄膜からなる導電層２１に挟まれている。銀薄膜（銅メッシュ）からなる導電層２１は、ＩＴＯに比較して熱伝導性が高く、フィルム基材２０からの熱を外部に逃がすことができるため、液晶層２２の温度上昇を抑制することができる。その点においても、導電層２１に銀薄膜（銅メッシュ）を用いた本実施例の車両用調光フィルム１０は、成形することが多い車両用の調光フィルムとして好適である。 The inner panel 32 of the side panel 30 described above is formed by integrally forming the panel member 33 constituting the inner panel 32 and the vehicle light control film 10 of the present embodiment using, for example, so-called vacuum forming. It's becoming Briefly, the light control film 10 of this embodiment is attached to a flat plate-like resin member that is the material of the panel member 33 . Then, the resin member and the light control film 10 are held, heated, matched to the mold, and vacuum-sucked to form the protrusions 30a. However, as described above, the film substrate 20 made of acrylic imide is molded at a temperature of about 160.degree. On the other hand, since the liquid crystal layer 22 has a heat resistant temperature of 100° C., it is necessary to prevent the temperature of the liquid crystal layer 22 from rising too much. In the light control film 10 of this embodiment, a liquid crystal layer 22 is sandwiched between conductive layers 21 made of silver thin films. The conductive layer 21 made of a silver thin film (copper mesh) has higher thermal conductivity than ITO, and can release heat from the film substrate 20 to the outside, so that the temperature rise of the liquid crystal layer 22 can be suppressed. can be done. In this respect as well, the vehicle light control film 10 of the present embodiment using a silver thin film (copper mesh) for the conductive layer 21 is suitable as a vehicle light control film that is often molded.

ＰＥＴからなるフィルム基材とＩＴＯからなる導電層を備える調光フィルムを、前述したように、パネル部材３３に沿って曲げることは困難であり、パネル部材３３に貼り付けようとしても、パネル部材３３との間に隙間が生じたり、調光機能が失われたりしてしまう。それに対して、本発明の製造方法によって成形されたインナパネル３２は、パネル部材３３に対して調光フィルム１０が隙間なく貼り付けられたものとなっており、無駄な隙間を生じさせることがない。また、本車両用調光フィルム１０が透明なパネル部材３３と一体的に成形されているため、その車両用調光フィルム１０の存在を乗員に気付かせないような車両用内外装材となっているのである。 As described above, it is difficult to bend the light control film including the film base material made of PET and the conductive layer made of ITO along the panel member 33 . A gap may be created between them and the dimming function may be lost. On the other hand, in the inner panel 32 formed by the manufacturing method of the present invention, the light control film 10 is adhered to the panel member 33 without gaps, so no useless gaps are generated. . In addition, since the vehicle light control film 10 is integrally formed with the transparent panel member 33, the vehicle interior and exterior materials are such that passengers do not notice the presence of the vehicle light control film 10. There is.

本実施例の車両用調光フィルム１０は、上述した用途以外にも、例えば、ドアトリム等の車室内側面に一体的に成形し、非透明状態とすることで、スクリーンとして機能させて、車両後方側の映像を投射してサイドミラーのように利用することができる。また、本実施例の車両用調光フィルム１０を、電車やバス等の外装材として構成し、非透明状態として、画像を投射してラッピングを施すように利用することもできる。 In addition to the applications described above, the vehicle light control film 10 of the present embodiment can be used, for example, by integrally forming it on the side surface of the vehicle interior such as the door trim and making it non-transparent, so that it functions as a screen to the rear of the vehicle. It can be used like a side mirror by projecting a side image. Further, the vehicle light control film 10 of the present embodiment can be configured as an exterior material for trains, buses, etc., and in a non-transparent state, can be used for wrapping by projecting an image.

本実施例に係る車両１１においては、車両用調光フィルム１０を透明状態と非透明状態とで切り替えるように構成されていたが、導電層２１に印加する電圧を制御することで、ヘイズ値を段階的に変更可能な構成とすることも可能である。 In the vehicle 11 according to the present embodiment, the vehicle light control film 10 is configured to be switched between the transparent state and the non-transparent state. A stepwise changeable configuration is also possible.

１０…車両用調光フィルム、２０…フィルム基材（アクリル系イミド）、２１…導電層（銀薄膜）、２２…液晶層、３２…インナパネル〔車両用内外装材〕、３３…パネル部材、 DESCRIPTION OF SYMBOLS 10... Light control film for vehicles, 20... Film base material (acrylic imide), 21... Conductive layer (silver thin film), 22... Liquid crystal layer, 32... Inner panel [interior and exterior material for vehicles], 33... Panel member,

Claims (4)

車両の内装あるいは外装の一部の形状をなすパネル部材を主体として構成され、
車両用調光フィルムが、前記パネル部材の表面に沿って貼り付けられてなる車両用内外装材であって、
前記車両用調光フィルムは、
対向配置された一対のフィルム基材と、
前記一対のフィルム基材の各々の対向面に形成された導電層と、
前記一対のフィルム基材の各々に形成された前記導電層の間に介在する液晶層と、を備え、
前記導電層に電圧が印加されることで、少なくとも自身のヘイズ値が相対的に高い状態と低い状態との間で切り替えられる構成とされ、
前記フィルム基材が、アクリル系イミドあるいはアクリル系イミドとアクリル系イミド以外の熱可塑性樹脂とを積層したものからなるとともに、
前記導電層が、銀薄膜あるいは銅メッシュからなり、
前記パネル部材は、透明な樹脂材料からなるとともに、所定方向に向かって突出する突出部を有し、
前記車両用調光フィルムは、前記パネル部材の前記突出部が突出する側に、前記突出部の形状に沿って隙間なく貼り付けられ、前記ヘイズ値が相対的に高い状態である非透明状態と、前記ヘイズ値が相対的に低い状態である透明状態との間で切り替え可能とされ、
前記車両用調光フィルムの前記非透明状態と前記透明状態との切り替えによって、当該車両用内外装材が非透明状態と透明状態との間で切り替えられることを特徴とする車両用内外装材。 It is mainly composed of a panel member that forms a part of the interior or exterior of the vehicle,
A vehicle interior and exterior material in which a vehicle light control film is attached along the surface of the panel member,
The vehicle light control film is
a pair of film substrates arranged to face each other;
a conductive layer formed on each facing surface of the pair of film substrates;
a liquid crystal layer interposed between the conductive layers formed on each of the pair of film substrates;
By applying a voltage to the conductive layer, at least its own haze value is switched between a relatively high state and a relatively low state,
The film substrate is made of acrylic imide or a laminate of acrylic imide and a thermoplastic resin other than acrylic imide,
The conductive layer is made of a silver thin film or a copper mesh,
The panel member is made of a transparent resin material and has a protrusion that protrudes in a predetermined direction ,
The vehicular light control film is attached without gaps along the shape of the projecting portion to the side of the panel member where the projecting portion projects, and a non-transparent state in which the haze value is relatively high. , being switchable between a transparent state in which the haze value is relatively low,
A vehicle interior/exterior material, wherein the vehicle interior/exterior material is switched between a non-transparent state and a transparent state by switching the vehicle light control film between the non-transparent state and the transparent state. 前記フィルム基材が、アクリル系イミドと芳香族ポリカーボネートとを積層したものからなる、請求項１に記載の車両用内外装材。 2. The vehicle interior/exterior material according to claim 1, wherein the film substrate comprises a laminate of an acrylic imide and an aromatic polycarbonate. 前記フィルム基材は、黄色度指数が５以下である、請求項１または請求項２に記載の車両用内外装材。 The vehicle interior/exterior material according to claim 1 or 2, wherein the film substrate has a yellowness index of 5 or less. 前記車両用調光フィルムは、真空成形により、前記パネル部材に一体的に貼り付けられている、請求項１から請求項３のいずれか１項に記載の車両用内外装材。 The vehicle interior/exterior material according to any one of claims 1 to 3, wherein the vehicle light control film is integrally attached to the panel member by vacuum forming.
JP2018207917A 2018-11-05 2018-11-05 Interior and exterior materials for vehicles Active JP7210227B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2018207917A JP7210227B2 (en) 2018-11-05 2018-11-05 Interior and exterior materials for vehicles
US16/667,129 US10877345B2 (en) 2018-11-05 2019-10-29 Light control film and vehicle body panel including the same
CN201911049441.XA CN111142283A (en) 2018-11-05 2019-10-31 Light control film and vehicle body panel including the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018207917A JP7210227B2 (en) 2018-11-05 2018-11-05 Interior and exterior materials for vehicles

Publications (2)

Publication Number Publication Date
JP2020076791A JP2020076791A (en) 2020-05-21
JP7210227B2 true JP7210227B2 (en) 2023-01-23

Family

ID=70459556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018207917A Active JP7210227B2 (en) 2018-11-05 2018-11-05 Interior and exterior materials for vehicles

Country Status (3)

Country Link
US (1) US10877345B2 (en)
JP (1) JP7210227B2 (en)
CN (1) CN111142283A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015034285A (en) 2013-07-10 2015-02-19 リケンテクノス株式会社 Method of producing easily-adhesive poly (meth) acryl imide film
CN105810758A (en) 2014-12-30 2016-07-27 北京生美鸿业科技有限公司 Quasicrystal patterning transparent film electrode used for intelligent light modulation film
JP2017206196A (en) 2016-05-20 2017-11-24 本田技研工業株式会社 Vehicle control system, vehicle control method, and vehicle control program
US20180231692A1 (en) 2017-02-15 2018-08-16 Samsung Electronics Co., Ltd. Window for display device and method of manufacturing the same and display device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9212080U1 (en) * 1992-09-08 1992-12-10 Schlenke, Hubert, 5778 Meschede, De
JP2003084123A (en) * 2001-06-29 2003-03-19 Seiko Epson Corp Color filter substrate, method for manufacturing color filter substrate, liquid crystal display device, electrooptical device, method for manufacturing electrooptical device and electronic apparatus
EP2237086A4 (en) * 2007-12-28 2010-12-15 Nippon Catalytic Chem Ind Optical film and image forming apparatus having the same
JP2011037921A (en) * 2009-08-06 2011-02-24 Kaneka Corp Acrylic imide resin and method for producing the same
JP6276211B2 (en) * 2014-05-30 2018-02-07 リケンテクノス株式会社 Transparent resin laminate
US10527875B2 (en) * 2014-10-22 2020-01-07 Panasonic Intellectual Property Management Co., Ltd. Optical device, optical device controller, and method for manufacturing optical device
WO2016147776A1 (en) * 2015-03-18 2016-09-22 リケンテクノス株式会社 Hard coat laminated film
JP2017062361A (en) 2015-09-25 2017-03-30 大日本印刷株式会社 Lighting control film and method for manufacturing the lighting control film
CN108474977B (en) * 2015-12-14 2021-03-09 富士胶片株式会社 Plastic unit and method for the production thereof
CN106773235A (en) * 2016-12-27 2017-05-31 广州汇驰实业发展有限公司 A kind of light modulation film and preparation method thereof
CN108663839A (en) * 2018-04-11 2018-10-16 华南师范大学 A kind of flexible liquid crystal optical gate and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015034285A (en) 2013-07-10 2015-02-19 リケンテクノス株式会社 Method of producing easily-adhesive poly (meth) acryl imide film
CN105810758A (en) 2014-12-30 2016-07-27 北京生美鸿业科技有限公司 Quasicrystal patterning transparent film electrode used for intelligent light modulation film
JP2017206196A (en) 2016-05-20 2017-11-24 本田技研工業株式会社 Vehicle control system, vehicle control method, and vehicle control program
US20180231692A1 (en) 2017-02-15 2018-08-16 Samsung Electronics Co., Ltd. Window for display device and method of manufacturing the same and display device

Also Published As

Publication number Publication date
US10877345B2 (en) 2020-12-29
CN111142283A (en) 2020-05-12
US20200142226A1 (en) 2020-05-07
JP2020076791A (en) 2020-05-21

Similar Documents

Publication Publication Date Title
KR101646786B1 (en) A extruded laminated resin sheet for a touch panel and a surface-coated sheet for a touch panel
JP7255501B2 (en) laminated glass
JP6477026B2 (en) Video projection window
JP2018505831A (en) Laminated glass with small thickness for head-up display (HUD)
JP5163020B2 (en) Panel-shaped molded body
JP2009229877A (en) Light diffusion plate with light condensing layer
KR20200018675A (en) Vehicle windowpane with PDLC film with defined droplet size distribution that reduces the Corona Effect
CN113165242B (en) Post-injection molding of dynamically temperature-regulated films
US20230302772A1 (en) Automotive laminate with weight reduction and mechanical strength enhancement
JP2011121305A (en) Method for molding panel
US11396165B2 (en) Multilayer film
US20160304752A1 (en) Blue light-blocking resin composition
US9944053B2 (en) Laminate sheet, method of manufacturing the laminate sheet, and article using the laminate sheet
JP2011232504A (en) Laminate for protection of liquid crystal display
JP6648054B2 (en) Touch panel
JP7210227B2 (en) Interior and exterior materials for vehicles
JP6542602B2 (en) the film
JP2004516218A5 (en)
JP4495938B2 (en) Manufacturing method of two-color molded products
JP2016097589A (en) Panel and vehicle
JP6669541B2 (en) Liquid crystal display
WO2022244873A1 (en) Laminated glass, and head-up display system
JP2013195483A (en) Display protective plate
JP5714522B2 (en) Mounting structure for film-like electrical equipment
KR102241268B1 (en) Layered plate

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210527

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20220330

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20220412

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220609

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20220906

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20221014

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20221213

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230111

R150 Certificate of patent or registration of utility model

Ref document number: 7210227

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150